seen an aisian carb with no adv. or retard ports? pic (1 Viewer)

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elkcreek canyon colorado
No advance or retard port on the back of the carb??? I think it is a 75' CA. model carb.
IMG_3689.JPG
 
Must have relied on the mechanical advance only? The only ported vacuum on a pre '75 carb I've seen was on a '74 that came off an FJ55. It is on my truck as we, ummm.....type;)

Ed
 
That is a typical F motor Vacume RETARD carb. The "emissions computer" tells the VSV (which gets constant vacume from the manifold) when to retard the dizzy. It is a fairly dumb design but that Carb has no Ported Vacume.
 
That is a typical F motor Vacume RETARD carb. The "emissions computer" tells the VSV (which gets constant vacume from the manifold) when to retard the dizzy. It is a fairly dumb design but that Carb has no Ported Vacume.


An F carb with center stud for the 2F aircleaner?????????? That is not an F carb:rolleyes:

Ed


Moto, what is the date stamp on the carb above the sight glass?
 
Good point on the air cleaner stud... So i guess it would be a 75-early 76, 2F Vac Retard Carb.
 
i think i have the same carb my vin is a 75, can you not use that on a desmog set up?
 
Not without the VSV parts for timing
Vac.gif
 
Or swap the base with a carb that has advance port.

Or have Jim or Mark drill your base.
 
can i drill a hole in the base to fix this.
 

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